APA

Hoover J. E., . (1962). A study of communism. New York: Holt, Rinehart and Winston.

Chicago

Hoover J Edgar, . 1962. A study of communism. New York: Holt, Rinehart and Winston.

Harvard

Hoover J. E., . (1962). A study of communism. New York: Holt, Rinehart and Winston.

MLA

Hoover J Edgar, . A study of communism. New York: Holt, Rinehart and Winston. 1962.